fasciculus


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Related to fasciculus: Arcuate fasciculus, Fasciculus cuneatus, fasciculus gracilis, fasciculus retroflexus, medial longitudinal fasciculus, uncinate fasciculus

fasciculus

 [fah-sik´u-lus] (pl. fasci´culi) (L.)
a small bundle or tract, especially of nerve or muscle fibers. Called also fascicle.
cuneate fasciculus of medulla oblongata the continuation into the medulla oblongata of the cuneate fasciculus of spinal cord.
cuneate fasciculus of spinal cord the lateral portion of the dorsal funiculus of the spinal cord, composed of ascending fibers that end in the nucleus cuneatus.
gracile fasciculus of medulla oblongata the continuation into the medulla oblongata of the gracile fasciculus of spinal cord.
gracile fasciculus of spinal cord the median portion of the dorsal funiculus of the spinal cord, composed of ascending fibers that end in the nucleus gracilis.

fas·ci·cle

(fas'i-kĕl),
A band or bundle of fibers, usually of muscle or nerve fibers; a nerve fiber tract.
Synonym(s): fasciculus (1) [TA]

fasciculus

/fas·cic·u·lus/ (fah-sik´u-lus) pl. fasci´culi   [L.] fascicle.
cuneate fasciculus of medulla oblongata  the continuation into the medulla oblongata of the cuneate fasciculus of spinal cord.
cuneate fasciculus of spinal cord  the lateral portion of the posterior funiculus of the spinal cord, composed of ascending fibers that end in the nucleus cuneatus.
gracile fasciculus of medulla oblongata  the continuation into the medulla oblongata of the gracile fasciculus of spinal cord.
gracile fasciculus of spinal cord  the median portion of the posterior funiculus of the spinal cord, composed of ascending fibers that end in the nucleus gracilis.
mammillothalamic fasciculus  a stout bundle of fibers from the mammillary body to the anterior nucleus of the thalamus.

fasciculus

(fə-sĭk′yə-ləs)
n. pl. fascicu·li (-lī′)
A bundle of anatomical fibers, as of muscle or nerve. Also called fascicle.

fasciculus

[fəsik′yələs] pl. fasciculi
Etymology: L, little bundle
a small bundle of muscle, tendon, or nerve fibers wrapped by a layer of connective tissue called the perimysium (muscle) or perineurium (nerve fiber). The arrangement of fasciculi in a muscle is correlated with the power of the muscle and its range of motion. The patterns of muscular fasciculi are penniform, bipenniform, multipenniform, and radiated. Also called fascicle. fascicular, adj.

fas·cic·u·lus

, gen. and pl. fasciculi (fă-sik'kyū-lŭs, lī) [TA]
1. Synonym(s): fascicle.
2. Synonym(s): cord (1) .
3. [TA]
Synonym(s): bundle.
[L. dim. of fascis, bundle]

fasciculus

A bundle of fibres, especially nerve fibres, running together with common origins and functions.

fasciculus

pl. fasciculi [L.] fascicle.

fasciculus arcuatus
a tract of nerve fibers joining the frontal area with the temporal, occipital and parietal regions of the cerebrum.
fasciculus atrioventricularis
see bundle of His.
central nervous system fasciculus
a tract of nerve fibers of a common origin but usually identifiable only by experimental means.
fasciculus cuneatus of medulla oblongata
the continuation into the medulla oblongata of the fasciculus cuneatus of the spinal cord.
fasciculus cuneatus of spinal cord
the lateral portion of the dorsal funiculus of the spinal cord, composed of ascending fibers that end in the nucleus cuneatus.
fasciculus gracilis of medulla oblongata
the continuation into the medulla oblongata of the fasciculus gracilis of the spinal cord.
fasciculus gracilis of spinal cord
the median portion of the dorsal funiculus of the spinal cord, composed of ascending fibers that end in the nucleus gracilis.
fasciculus lenticularis
a nerve bundle that connects the pallidum with the cerebrum and the brainstem.
fasciculus longitudinalis
the dorsal and medial part of this bundle of nerve fibers connects the vestibular apparatus with the oculomotor and trochlear motor nuclei as well as the medullary and spinal neurons responsible for the movements of the head and neck.
fasciculus occipitofrontalis ventralis
a nerve tract which connects the frontal cortex with the occipital lobe.
uncinate fasciculus
a tract of nerve fibers that connects the frontal and temporal lobes of the cerebral cortex.
References in periodicals archive ?
Since the oculomotor nucleus is in the midbrain and the abducens nucleus is in the pons the two must be connected, and this connection (pathway) is the medial longitudinal fasciculus (MLF) (Fig 3).
The two most frequently damaged white matter tracts in this cohort of mild TBI patient were the anterior corona radiata (ACR) and the uncinate fasciculus (UF).
Particularly, the superior branch of the arcuate fasciculus in the right hemisphere could not be detected in the tone-deaf individuals.
They show that the arcuate fasciculus, a structure long-known to join perceptual and motor areas, has reduced connectivity in individuals with tone deafness.
See also the passage quoted above from Gentleness and Nobility; and Fasciculus Morum 4.
Results demonstrated that mild TBI showed reduced white matter integrity in the superior longitudinal fasciculus, sagittal striatum, and corticospinal tracts.
The team found that a white-matter tract called the uncinate fasciculus (UF), which connects parts of the brain called the amygdala and the orbitofrontal cortex (OFC), differed significantly between the psychopaths and the control group.
A vestibular disorder has a tonic effect on the extraocular muscles through the medial longitudinal fasciculus, which makes it difficult or impossible to track words across a printed page.
The triad is, further, associated with the three theological, and three cardinal, virtues in the Fasciculus morum v, 24-35: see Siegfried Wenzel, Verses in Sermons: 'Fasciculus morum' and its Middle English Poems (Cambridge, Mass.
Wenzel cites from the early fourteenth-century preachers' handbook Fasciculus morum a passage which also links hawthorn and spring with the crown of thorns and the wound in Christ's side;(48) the parallel with Odo takes the tradition back to the early thirteenth century and defines it more precisely.
Brown, Fasciculus rerum expetendarum, II (London, 1690), p.